Cutter-head.



. lowing is a fu-l1,c ear, `and eXact specification@ This invention ,relates toL rotary` cutter'- v heads'for'woodworkin -machine's, and espejustably securingthe view in'en elevation of a cutteread which .embodles the features of my invention. Fig".

n g' inafter set forth, andmore 1 5 N UNITED-snags v`P'Afinar ori-non. y,

lA ARTHUR: WfNELs'oN., oF cHicAGo, iLL'NoIs.

` v .,CuTTR-H-EAD." l'

To @Nvt/tom, t 11i/ay concern:

citizen of the United States, and a resident of v the city of Chicago, cnuntyf of Cookg, and

`State of Illinois,

jhave invented certain new and useful' Improvements inv Cutter-Heads `for Woodworkin -Machines, of which the folcially to "means for 'a knives. l j 1 y The invention-consists in the matters hereed out in the appended clalms. l

Referrin tothe drawings.Fi ure lv is' a 2 is a view in side elevation of the cutter. In the drawin provided lat eac erebyit may be mounted'm the usual manner 1n a planer or `the head-stock, the adjacent 'faces' a2 and a* being atlright angles to eachother and the faces a?,` being cut away to form a rectangular slot whoseV outer side is parallel to the inner side, which lis a continuation of the face a.

'lhe'cutters or knives com rise flat barsB,

preferably of tool-steel, w ich are` secured against the vfaces-y a2 by clamps- C. Saidl clam s are each provided/'with atonguec,

- Whic is adapted'to have sliding engagement with fthe mating slot a3 the inner side/c2 bearingagainst'the face c* ofthe head stock. v Cap-screws D, having screw-threaded engagement with the clam ls land passing through the ribsparallel to vt e Specification of-Lettersl Patent. i. i, Application fusionner 1904. sean No. 221,733.'

particularly points,yA represents the head# stock, towhichlt e cutting blades or knives are adjustably secured. yThis is lpreferabl formed of a slngleforgin l end with journals a, l W

llike machine. Ribs a/ project radially vfrom inthe adjacent rib,

Patented Marengo. 1906.

y d p K -v themselves to different thicknesses ofknives. l Beit known-that I, ARTHUR W.' NELSON, a l` the c Inps', and the entire .5oy

' knives, as the clamps do not bear againstthe head-stock in any way, lsave in the direction'` of motion 'of thescrew. .The interlocking of the head-,stock and` clampslikewise relieves the screws of any side strain when the head is f rotating.v There are no apertures formed'in the cutting-blades,thereby saving stock and permitting the usegof very hard-steel, as the grinding necessary to form the slight bevel of Vthe cutting ed e is all the tooling to'fitthe e principal'feature ofthe de- Y.

bar for use.` `T y vice, however, is the arrangement of the clamps whereby the entire force of the `screws isl exerted on the knives alone, and that in e' orfbeark jointly on both forms of cutters, greatly increasing' thef'rigidity of the' head.

It isobvious that many details. of con- -struction lmay be varied without de arting y from the spirit of the invention, and do not limit myself to any particular ,formv or artheline 1of the screw-axes, thefactth'at the clampsdo` not brid the head-stock an knives, asin the'.usual f 'i rangement ofpartsgexceptas"set forth in y certain ofthe appended claims.

I claim 'as my invention'- A cutter headcomprising a head stock,

knivesradiallydis osed thereon, guidewa s ,inf the head-stool; perpendicular to t er knives, and 4clamps, having sliding engagement' with the guidewa'ys,4 bearing against the knives; 1 l

.testimony whereof I- have hereunto signed my name, in the lpresence ofthe subscribing witnesses," this 19th day. f July, y, A .D,419.04 .m A t ARTHUR W. NELSON .y Witnesses: 1 ED.:.J. RoDGERs,

Y C JR. STIc'nNEY.y

8ol V1- 

